Attachment for internal-combustion engines



1511.20, 1931 J. o. BISSONNETTE- 1,789,802

ATTACHMENT FOR INTER AL COMBUSTION ENGINES Filed Feb. 27, 1929 ATTORNEY Patented Jan. 20, 1931 UNITED STATES #PATENT OFFICE JOSEPH OSCAR BISSONNETTE, 0F HONOLULU, TERRITORY OF HAWAII, ASSIGNOR OF ONE-HALF TO JAMES ALEXANDER MALLOY, OF HONOLULU, TERRITORY OF HAWAII ATTACHMENT FOR INTERNAL-COMBUSTION"ENGINES v Application filed February 27, 1929. Seria1 No. 343,150.

This invention relates to in'i n'ovements in internal combustion engines. one object ot the invention being the provision oi air admitting means for connection to the air intake of a carbureter and to the crank case of an internal combustion engine and adapted to be disposed behind the radiator and in front of the fan, and provided with a filtering means for preventing any particles of dust, dirt or other foreign matter carried by the air from entering the same, so that the air blast from the tan may cause the heavier particles to be precipitated or blown away, thus insuring the supply of clean air to the air intake of the carbnreter and clearing the crank case oi? objectionable vapors.

Another object of the present invention is the provision of a device of this character which may be readily positioned in place and is so constructed that various modifications thereof for drawing oil vapor from the crank case of an internal combustion engine and delivering it together with air to the proper places adjacent the exhaust and intake of the engine may be made according to the type of engine upon which same is to be used, and

which is simple and inexpensive in construction and thoroughly eflicient and economical in use.

In the accompanying drawings Figure 1 is a top plan view of one form of air admitting device;

Figure 2 is a front elevation thereof; Figure 3 is a section taken on the line 33 of Figure 1;

Figure 4 is an end elevation of the device as shown in Figure 2;

Figure 5 is a view similar to Figure 1 of a modified shape of air admitting device;

Figure 6 is a view in elevation thereof; Figure 7 is a section taken on the line 7-7 of Figure 5;

Figure 8 is an end view of the device as 1llustrated in Figure 6;

Figure 9 is a perspective View of the device as illustrated in Figure 5;

Figure 10 is a diagrammatic perspective View of an automobile radiator with the device as shown in Figure l in position thereon;

Figure 11 is a diagramn'iatic top plan view of an internal combustion engine and radiator with the present device inoperable relation thereto, v

Figure 12 is a di'agrammatEc sectional view taken on the line 12-12 of Figure 11.

Referring to the drawings, A designates the air admitting member, which, as shown in Figs. 1, .2 and 10, is rectangular in plan while that shown in l igs zi, 6 and 9 is an elongated member ronndedat its ends. The member A hasan opening extending substantially the whole length of its rear wall and coveredbya material S,'such as perforated chamois or the like, which will )ermit the admission of air into the chamber A but will filterall'particles carried thereby, so that oil vapor drawn through the conduit 0 at one end of the chamber A and filtered air drawnthrough the screen S will be delivered to the carburetor through the conduit C at the other end of the chamber. Nhen the present device is in use a member'A is attached to the rear of the radiatorK at a point directly in line with the axis of the fan J, which, as is usual, isv operated bv the engine P. V j a I U According to one embodiment of the prcsent device the pipe or conduit C is connected to the breather tube G, which is sealed bvan airtight lid H,.while' the pipe or conduit C is connected, to the super-heater chamber l surrounding the exhaust pipe E of the en-= gine, from which chamber air passes the ex tension pipe F through to the intake of the carbureter (not shown). Thus clean air will I be supplied to the carbureter and tothe crank case and the carbureter will receive the vapors coming from the crank case through the pipe C.

It will thus be seen that with the chamber 45-, in line with the fan J, as illustrated, the fan,

' when operating, will cause a suction of the air through the radiator and around the member A and that the heavier particles of dust in the air passing int'ront of the screened opening of the member A will be precipitated by the action of the'fan sothat the air drawn .into the member A through the screen S will be freed of all of tl'ieparticles that would,

Lil

be deleterious to the bearings of the engine and to the carbureter and cylinders of the engine, the combined action of the filter screen S and the fan J insuring the delivery to the carbureter through the conduit 0 of oil vapor drawn from the crank case through the conduit 0 and thoroughly cleansed or filtered air drawn through the screen S.

It is evident that many variations of the installation of the present device for delivery of the. air to the carbureter or to the crank case may be constructed without departing from the spirit of the invention, the main idea of which is to use the member A and its screen S in conjunction with the fan J.

Vhat is claimed as new is:

1. An apparatus of the character described, comprising a hollow member having an air admitting opening in one of its walls and a passageway adjacent each oit its ends for connection, respectively, to the carbureter and to theerank case of an internal combustion engine, and an air-filtering screen covering said air admitting opening, said apparatus 7 being adapted to be mounted adjacent to and in advance of the cooling fan of the engine with its air admitting opening directed toward said fan to permit the fan to assist in removing foreign particles from the air admitted to said air-admitting opening.

"2. A device of the character described, including a relatively flat hollow member adapted to be mounted between the radiator and the cooling fan of an internal combustion engine and having in its wall which is directed toward the fan an opening substantially the full length thereoflan air filtering means over said opening, anda pair of nozzles projecting rearwardly from said hollow member, one adjacent one end of said hollow member for connection to and for receiving oil vapors from the crank case of an engine and the other adjacent the opposite end of said hollow member for connection to the carbureter of the engine.

Intestimony whereof I have aliixed my signature.

JOSEPH OSCAR BISSONNETTE. 

